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East Helsinki, Uusimaa Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in East Helsinki, Uusimaa?
East Helsinki, Uusimaa gets 735 mm of precipitation a year over about 167 rainy days. July is the warmest month (average high 23°C) and January the coldest (average low -6°C).
Humid continental climate
East Helsinki, Uusimaa has warm summers and cold winters. Daytime highs range from about -1°C in January to 23°C in July. August is usually the wettest month. The most comfortable time to visit is typically June to July, when daytime highs sit near 21°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | -5° | -1° |
| Spring | Mar–May | 2° | 9° |
| Summer | Jun–Aug | 13° | 21° |
| Autumn | Sep–Nov | 5° | 10° |
How much rain does East Helsinki get?
East Helsinki gets 735 mm of precipitation in an average year, spread over about 167 days with measurable rain. That is more rainy days than 50% of Finland.
August is the wettest month, with 82 mm. April is the driest, with 37 mm. January has the most rainy days, about 18.
The longest dry spell in the last five years lasted 27 days, to April 23, 2023.
From October 2025 to September 2026 East Helsinki got 504 mm of rain, against a normal of 735 mm for those months. October 2025 had the most, with 87 mm.
East Helsinki weather by month
East Helsinki weather in January
In January, East Helsinki averages a high of -1°C and a low of -6°C. It gets 63 mm of precipitation over about 18 rainy days. Estimated sunshine is 16% of daylight hours, derived from ERA5 cloud cover. The January record high is 8°C (2007) and the record low is -26°C (2016).
East Helsinki weather in February
In February, East Helsinki averages a high of -1°C and a low of -6°C. It gets 51 mm of precipitation over about 15 rainy days. Estimated sunshine is 21% of daylight hours, derived from ERA5 cloud cover. The February record high is 9°C (2021) and the record low is -26°C (2012).
East Helsinki weather in March
In March, East Helsinki averages a high of 3°C and a low of -3°C. It gets 40 mm of precipitation over about 12 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The March record high is 16°C (2007) and the record low is -18°C (2018).
East Helsinki weather in April
In April, East Helsinki averages a high of 9°C and a low of 1°C. It gets 37 mm of precipitation over about 11 rainy days. Estimated sunshine is 44% of daylight hours, derived from ERA5 cloud cover. The April record high is 21°C (2025) and the record low is -7°C (2022).
East Helsinki weather in May
In May, East Helsinki averages a high of 16°C and a low of 7°C. It gets 38 mm of precipitation over about 10 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The May record high is 29°C (2018) and the record low is -2°C (2017).
East Helsinki weather in June
In June, East Helsinki averages a high of 20°C and a low of 11°C. It gets 68 mm of precipitation over about 12 rainy days. Estimated sunshine is 56% of daylight hours, derived from ERA5 cloud cover. The June record high is 32°C (2021) and the record low is 2°C (2017). June is one of the most comfortable months to visit.
East Helsinki weather in July
In July, East Helsinki averages a high of 23°C and a low of 14°C. It gets 55 mm of precipitation over about 12 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The July record high is 33°C (2019) and the record low is 6°C (2009). July is one of the most comfortable months to visit.
East Helsinki weather in August
In August, East Helsinki averages a high of 22°C and a low of 13°C. It gets 82 mm of precipitation over about 14 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The August record high is 32°C (2018) and the record low is 4°C (2007).
East Helsinki weather in September
In September, East Helsinki averages a high of 16°C and a low of 9°C. It gets 69 mm of precipitation over about 14 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The September record high is 26°C (2024) and the record low is -1°C (2019).
East Helsinki weather in October
In October, East Helsinki averages a high of 9°C and a low of 4°C. It gets 77 mm of precipitation over about 15 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The October record high is 18°C (2015) and the record low is -7°C (2012).
East Helsinki weather in November
In November, East Helsinki averages a high of 5°C and a low of 1°C. It gets 76 mm of precipitation over about 18 rainy days. Estimated sunshine is 17% of daylight hours, derived from ERA5 cloud cover. The November record high is 14°C (2015) and the record low is -17°C (2010).
East Helsinki weather in December
In December, East Helsinki averages a high of 2°C and a low of -2°C. It gets 78 mm of precipitation over about 17 rainy days. Estimated sunshine is 13% of daylight hours, derived from ERA5 cloud cover. The December record high is 11°C (2015) and the record low is -23°C (2010).
Sunshine, humidity and wind in East Helsinki
June is the sunniest month in East Helsinki, with estimated sunshine of 56% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 13%. The annual cloud-cover estimate is 32% of daylight hours; it is not a measurement of sunshine duration. East Helsinki is sunnier than 84% of Finland.
Humidity peaks in January at 90% and is lowest in May at 61%.
First and last freeze in East Helsinki
The first fall freeze in East Helsinki typically comes around October 17, and the last spring freeze around May 1. That leaves a frost-free growing season of about 169 days.
East Helsinki weather records
These records cover HELSINKI KUMPULA during 2005–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the East Helsinki station is 33°C, on July 28, 2019. The coldest is -26°C, on February 5, 2012.
The wettest day in the available station history brought 49 mm of precipitation, on October 9, 2024.
The best time to visit East Helsinki
The most comfortable time to visit is typically June to July, when daytime highs sit near 21°C.
Winter (December–February) is cold, with average highs around 0°C and lows near -5°C.
Spring (March–May) is chilly, with average highs around 9°C and lows near 2°C.
Summer (June–August) is warm, with average highs around 21°C and lows near 13°C. It can feel humid.
Autumn (September–November) is chilly, with average highs around 10°C and lows near 5°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | -6° | -1° | 63 mm | 18 | 90% | 16% | 8° | -26° |
| February | -6° | -1° | 51 mm | 15 | 87% | 21% | 9° | -26° |
| March | -3° | 3° | 40 mm | 12 | 81% | 37% | 16° | -18° |
| April | 1° | 9° | 37 mm | 11 | 69% | 44% | 21° | -7° |
| May | 7° | 16° | 38 mm | 10 | 61% | 46% | 29° | -2° |
| June | 11° | 20° | 68 mm | 12 | 64% | 56% | 32° | 2° |
| July | 14° | 23° | 55 mm | 12 | 73% | 41% | 33° | 6° |
| August | 13° | 22° | 82 mm | 14 | 79% | 36% | 32° | 4° |
| September | 9° | 16° | 69 mm | 14 | 82% | 32% | 26° | -1° |
| October | 4° | 9° | 77 mm | 15 | 86% | 24% | 18° | -7° |
| November | 1° | 5° | 76 mm | 18 | 90% | 17% | 14° | -17° |
| December | -2° | 2° | 78 mm | 17 | 90% | 13% | 11° | -23° |
Station: HELSINKI KUMPULA, 7 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 2005–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
East Helsinki climate questions
How much rain does East Helsinki get?
East Helsinki gets 735 mm of precipitation in an average year, over about 167 rainy days.
What is the wettest month in East Helsinki?
August is the wettest month in East Helsinki, with 82 mm. April is the driest, with 37 mm.
How many rainy days does East Helsinki have a year?
East Helsinki has about 167 days with measurable rain in an average year. January has the most, about 18.
What is the hottest month in East Helsinki?
July is the warmest month in East Helsinki, with an average high of 23°C.
What is the coldest month in East Helsinki?
January is the coldest month in East Helsinki, with an average low of -6°C.
What is the record high temperature in East Helsinki?
Within the available 2005–2026 station history, the record high at the East Helsinki station is 33°C, set on July 28, 2019. The record low is -26°C, on February 5, 2012.
What is the sunniest month in East Helsinki?
June is the sunniest month in East Helsinki, with estimated sunshine of 56% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in East Helsinki?
The first fall freeze in East Helsinki typically comes around October 17. The last spring freeze is around May 1.
What is the best time to visit East Helsinki?
The most comfortable time to visit is typically June to July, when daytime highs sit near 21°C.